Has anybody noticed these posters plastered all over town? I started noticing these about a month ago around the neighborhood.

"In San Francisco, critics have expressed their disapproval by adding some spray paint of their own to the Sony ads. On a wall outside a beer garden in San Francisco's bohemian Mission District that caters to motorcyclists and bike messengers, someone spray-painted over every character, adding the commentary, "Advertising directed at your counter-culture." "

"In a world saturated with high priced corporate imagery, beyond just having a charming aesthetic, the stencil is a cheap and effective way for an artist or activist to put their work in front of the public and level the playing field." -Shepard Fairey.

"My drive is the need to see art on blank spaces, to breathe life into derelict sites. It often makes people think twice about vandalizing them, just as you wouldn't throw a piece of wood onto the fire if it were carved into a beautiful figure or animal."- Nylon

(The above quotes are found in Tristan Manco's book "Stencil Graffiti").